package com.duyus.mapper;

import com.duyus.pojo.Emp;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.List;

@Mapper
public interface EmpMapper {

    /**
     * 获取总记录数
     * */
    @Select("select count(*) from emp")
    public Long count();

    /**
     * 分页查询获取结果
     * 查询记录
     * */
    @Select("select * from emp limit #{start},#{pageSize}")
    public List<Emp> page(Integer start, Integer pageSize);

    /**
     * 普通查询
     * */
//    @Select("select * from emp")
    public List<Emp> list(String name, Short gender, LocalDate begin, LocalDate end);

    /**
     * 批量删除
     * */
    void delete(List<Integer> ids);

    /**
     * 批量添加数据
     * */
    @Insert("insert into emp (username, name, gender, image, job, entrydate, dept_id, create_time, update_time) values (#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);

    /**
     * 根据 id 查询员工
     * */
    @Select("select * from emp where id = #{id}")
    Emp getById(Integer id);

    /***
     * 接受一个json  修改用户的信息
     */
    void update(Emp emp);


    @Select("select * from emp where username=#{username} and password = #{password}")
    Emp getByUsernameAndPassword(Emp emp);

    @Delete("delete from emp where dept_id= #{deptId}")
    void deleteByDepId(Integer deptId);
}
